Finding the Fourth Proportional to 2,659.03, 3,669.78 and 1,611.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,659.03 : 3,669.78 = 1,611.10 : x
2. Step 2: Convert to fraction form
   2,659.03/3,669.78 = 1,611.10/x
3. Step 3: Cross multiply
   2,659.03x = 3,669.78 × 1,611.10
4. Step 4: Simplify right side
   2,659.03x = 5,912,382.56
5. Step 5: Solve for x
   x = 5,912,382.56/2,659.03
6. Step 6: Final answer
   x = 2,223.51